Every year, companies produce and people use approximately 1 trillion plastic bags. They come in all different sizes and appear in many different retail outlets. People use them to carry everything from expensive items to loads of groceries. As an inexpensive way of transporting goods, plastic bags continue to remain popular. Manufacturers continue to produce them using the right type of plastic bag machine. Parts of specific sizes, specifications and types are another integral part of keeping the process operating smoothly from start to finish.
Making Plastic Bags
The actual process of manufacturing a plastic bag is not an extremely complex one. It does require, however, the right machinery to do so. Yet, while a manufacturer of plastic bags must have the right machinery to produce a certain style or model of bag, certain steps are common no matter what bag is being produced. Essentially, the entire process boils down to two basic steps:
Step One: The Extrusion Process
The first step in the process is called extrusion. It occurs when a plastic bag extruder machine heats polyethylene plastic resin pellets to approximately 500 degrees Fahrenheit. The process melts the pellets. A screw within the extruder than pushes the molten plastic through a die in the machine. The die is there to ensure the thickness of the plastic is as required for the plastic bag.
Following this, as the plastic film begins to emerge, the extractor forces air into it crating a bubble. This causes the plastic film to rise upwards cooling along the way. The machinery then flattens the film by removing the bubble. It then proceeds to slice the film to size and wrap it on a spindle.
Step Two: Plastic Conversion or Converting Film to Bags
Step two involves the now perfectly cut plastic film unwrapped and then further sliced by a heated knife. As it slashes, it also seals the two sides of the bag and cuts the film to size. The converter also performs several other functions during this step – although it may not do them all. Among them are:
- Cut-out handles
- Produce gussets
- Attach zippered seals – e.g. for sandwich bags
Integration with other systems following this step may result in printing, slitting or form filling and sealing. Any printing may be done after the bags have been converted, or in a separate department between extrusion and conversion. Specialized machinery may also add specific designs or text. specific bag machine parts perform their part in ensuring the work is done correctly each time.
Plastic Bag Machine Parts Are Required
Plastic bags remain in high demand. In order to ensure eh supply meets the demand, machinery pumps them out rapidly. Different types of machines manufacture this product. The models or styles create specific types of bags. Within them the cogs and wheels, all bag machine parts, work together to make the items desirable ad affordable for both commercial clients and consumers alike.